"No. 44, The Mysterious Stranger" is narrated by August Feldner, a sixteen-year-old printer's apprentice living in a remote Austrian village in the late fifteenth century. The print shop in which he works is located in a run-down old castle, which houses over a dozen people, including the print master, his family, and the various men who work in the shop, as well as a magician. August relates the magical events that occur in the castle after the arrival of a strange boy who says his name is "Number 44, New Series 864,962." Twain's central themes in this story include dreams and the imagination, as well as ideas, knowledge, and thought.